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Morgan Lewis - As Prescribed

Vaccine Suspension: FDA Leans Into Its Withdrawal Toolbox, But Will It Invite Challenges?

Morgan Lewis - As Prescribed on

On August 22, 2025, FDA suspended the biologics license for Ixchiq, one of only two marketed chikungunya vaccines. The decision to suspend comes only a few weeks after FDA approved a Safety Labeling Change supplemental...more

Cozen O'Connor

HHS Advocates Mandated Placebo-Controlled Trials for New Vaccines: Implications for Clinical and Regulatory Practice

Cozen O'Connor on

The Department of Health and Human Services (“HHS”) recently proposed a policy that would require all new vaccines to undergo placebo-controlled clinical trials prior to FDA approval. The proposal, while controversial, is...more

Butler Snow LLP

Turnabout is Fair Play – “Junk Science” Litigation Aftermath: Requisite Retractions and Dubious Do-Overs

Butler Snow LLP on

Do plaintiffs’ experts get to put junk science before juries more often than their opinions are excluded? The answer is a resounding “probably.” Even in light of the December 2023 amendment to Federal Rule of Evidence and its...more

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